I have had mine off for a while , no problems here other than sizeadaptivelayout @4206e198child view androidframelayout measured out of bounds at 92px clamped to 96px clamping ..
i went ahead and deletes the .odex files for the corresponding deleted app and saved more space. Some of them took up to 15mb. i havent seen any changes to my phone so i assume its alright to delete the .odex apps
I have the metropcs version of the phone. So far I've removed all Metro apps, google books, google music, google newstand and a few other apps that have been deemed safe to remove. But...everyday I still get a notification that my storage is almost full. I have every app that I can move to SD card moved there and then I run SD Maid to clean up the storage and it gets me by for another day before it fills up again. This is getting very frustrating
you are probably using an app that saves it cache to the internal sd. I use tumblr a lot and since it cant be removed to the SD it saves all of the pictures/gifs and fills up the rest of the internal memory.
On a side note, I found this post which allowed me to move some "unmoveable" apps to my sd card: Moving Your ‘Non-Movable’ Android Apps to an SD Card – Techgage
try using any cache cleaner from the play store. i usually just to to Settings>Apps and go to certain apps and clear the cache. Although i'm not sure if apps on the external SD save cache to external SD or the internal SD.